Lee 300 AAC Blackout Collet necksizing die uses a steel collet to squeeze fired case to a precision mandrel, creating a precisely aligned case neck while reducing run out. Results in best accuracy and extended case life. Sizes just the neck and requires no case lubrication. Recommended for cases that have been fired through your firearm only.

Product Code: 91017

For more information visit: https://leeprecision.com/collet-die-only-300-aac

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